[   51.335638] kernel BUG at drivers/gpu/drm/imx/ipuv3-plane.c:84!
[   51.341719] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[   51.347704] Modules linked in: binfmt_misc evbug
[   51.352556] CPU: 3 PID: 1218 Comm: atomic_test Not tainted 4.8.0 #2
[   51.358989] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[   51.365688] task: ee2e3700 task.stack: ee318000
[   51.370355] PC is at ipu_plane_atomic_check+0x548/0x564
[   51.375726] LR is at ipu_plane_atomic_check+0x3b0/0x564
[   51.381098] pc : [<80323670>]    lr : [<803234d8>]    psr: 600b0013
               sp : ee319c80  ip : ee319c80  fp : ee319cc4
[   51.392852] r10: eea43f00  r9 : eeb10f40  r8 : 00000000
[   51.398217] r7 : eea43f00  r6 : ee0f9200  r5 : ee2b0900  r4 : 00000000
[   51.404911] r3 : 00000000  r2 : 5bd00000  r1 : 00000025  r0 : 00000000
[   51.411609] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   51.418928] Control: 10c5387d  Table: 7d4f404a  DAC: 00000051
[   51.424827] Process atomic_test (pid: 1218, stack limit = 0xee318210)
[   51.431437] Stack: (0xee319c80 to 0xee31a000)
[   51.435927] 9c80: 00000005 00000000 00000000 5bd00000 00151800 000e1000 ee319cec 00000000
[   51.444318] 9ca0: eda2a900 eda2aa40 00000000 eeafd000 805e4fe4 ed8a1680 ee319cec ee319cc8
[   51.452710] 9cc0: 802f5d04 80323134 eda2a900 eea62000 eea62000 00000004 808e1620 eda2a900
[   51.461100] 9ce0: ee319d04 ee319cf0 80320340 802f5c7c 00000000 80320314 ee319d54 ee319d08
[   51.469490] 9d00: 8031ce18 80320320 ee319d34 ee319d18 8030a8d8 805a8ef0 eeb0c980 00000018
[   51.477880] 9d20: 00000000 eda2acc0 ee319d44 eda2a900 eea62000 ee318000 00cbe074 00000000
[   51.486268] 9d40: 00000000 0000000d ee319d6c ee319d58 8031d328 8031ccb8 eeb0c980 00cbe7b8
[   51.494658] 9d60: ee319e14 ee319d70 8031e7bc 8031d31c 00000018 00000000 8f92e59f ee271400
[   51.503047] 9d80: 00cbe030 00cbe090 00cbe750 00cbe040 00000001 ee319e50 00cbe03c 00cbe09c
[   51.511436] 9da0: 00000003 eeb92810 eda2a900 0000000d eea62000 eeb92824 ee1cf900 eea62850
[   51.519813] 9dc0: 00000018 00000000 00000002 ee2e3700 000000d1 00000003 00000000 eea6217c
[   51.528073] 9de0: eeafd02c 00000000 ee319e14 00000000 00000038 ee319e50 00000038 805dabc0
[   51.536333] 9e00: c03864bc eea62000 ee319efc ee319e18 8030350c 8031e0c0 80061368 805aaff0
[   51.544592] 9e20: 00000000 ee21398c 200b0013 ee271400 00000051 8031e0b4 00000038 ee271400
[   51.552851] 9e40: 808e1620 7ebf61e0 ee319e50 000000bc 00000400 00000003 00cbe090 00000000
[   51.561109] 9e60: 00cbe030 00000000 00cbe040 00000000 00cbe750 00000000 00000000 00000000
[   51.569371] 9e80: 00000000 00000000 ee319edc ee319e98 802c4c70 802cd0e8 ee319efc 00000051
[   51.577630] 9ea0: ee34d940 802c90f8 eda8b000 00000010 000001c2 eda8b000 ee319f80 00013188
[   51.585889] 9ec0: ee319f80 00000010 ee318000 00000000 ee319f4c 7ebf61e0 eea5d728 ee2b0a80
[   51.594148] 9ee0: c03864bc 00000003 ee318000 00000000 ee319f7c ee319f00 80112c9c 80303374
[   51.602406] 9f00: 00cdf000 00000001 eda8b008 ee18ce38 00000002 001c2000 00000000 00000000
[   51.610665] 9f20: ee318000 00000010 eda8b000 ee693ae0 00000002 eda8b008 ee318000 00000000
[   51.618924] 9f40: ee319f7c ee319f50 801012ec 8013e414 00000000 ee2b0a80 7ebf61e0 ee2b0a80
[   51.627184] 9f60: c03864bc 00000003 ee318000 00000000 ee319fa4 ee319f80 801135b0 80112c14
[   51.635442] 9f80: 00000000 00cbe008 7ebf61e0 c03864bc 00000036 800100e4 00000000 ee319fa8
[   51.643702] 9fa0: 8000ff20 80113580 00cbe008 7ebf61e0 00000003 c03864bc 7ebf61e0 00000000
[   51.651961] 9fc0: 00cbe008 7ebf61e0 c03864bc 00000036 00000000 00cbe030 00cbe090 00000022
[   51.660220] 9fe0: 76f51088 7ebf61ac 76f380b8 76ec6c8c 600b0010 00000003 00000000 00000000
[   51.668473] Backtrace: 
[   51.670982] [<80323128>] (ipu_plane_atomic_check) from [<802f5d04>] (drm_atomic_helper_check_planes+0x94/0x1fc)
[   51.681164]  r10:ed8a1680 r9:805e4fe4 r8:eeafd000 r7:00000000 r6:eda2aa40 r5:eda2a900
[   51.689171]  r4:00000000
[   51.691765] [<802f5c70>] (drm_atomic_helper_check_planes) from [<80320340>] (imx_drm_atomic_check+0x2c/0x44)
[   51.701684]  r9:eda2a900 r8:808e1620 r7:00000004 r6:eea62000 r5:eea62000 r4:eda2a900
[   51.709607] [<80320314>] (imx_drm_atomic_check) from [<8031ce18>] (drm_atomic_check_only+0x16c/0x664)
[   51.718913]  r5:80320314 r4:00000000
[   51.722572] [<8031ccac>] (drm_atomic_check_only) from [<8031d328>] (drm_atomic_commit+0x18/0x6c)
[   51.731441]  r10:0000000d r9:00000000 r8:00000000 r7:00cbe074 r6:ee318000 r5:eea62000
[   51.739443]  r4:eda2a900
[   51.742028] [<8031d310>] (drm_atomic_commit) from [<8031e7bc>] (drm_mode_atomic_ioctl+0x708/0x790)
[   51.751070]  r5:00cbe7b8 r4:eeb0c980
[   51.754729] [<8031e0b4>] (drm_mode_atomic_ioctl) from [<8030350c>] (drm_ioctl+0x1a4/0x4bc)
[   51.763072]  r10:eea62000 r9:c03864bc r8:805dabc0 r7:00000038 r6:ee319e50 r5:00000038
[   51.771078]  r4:00000000
[   51.773671] [<80303368>] (drm_ioctl) from [<80112c9c>] (do_vfs_ioctl+0x94/0x96c)
[   51.784764]  r10:00000000 r9:ee318000 r8:00000003 r7:c03864bc r6:ee2b0a80 r5:eea5d728
[   51.796449]  r4:7ebf61e0
[   51.802724] [<80112c08>] (do_vfs_ioctl) from [<801135b0>] (SyS_ioctl+0x3c/0x64)
[   51.813804]  r10:00000000 r9:ee318000 r8:00000003 r7:c03864bc r6:ee2b0a80 r5:7ebf61e0
[   51.825530]  r4:ee2b0a80
[   51.831841] [<80113574>] (SyS_ioctl) from [<8000ff20>] (ret_fast_syscall+0x0/0x3c)
[   51.843218]  r8:800100e4 r7:00000036 r6:c03864bc r5:7ebf61e0 r4:00cbe008 r3:00000000
[   51.854901] Code: 1affff02 e1a07005 eaffff04 e7f001f2 (e7f001f2) 
[   51.864802] ---[ end trace 574c5f19a19ac129 ]---